luger made strike marks in shell
 

hi there, i am trying to identify which shells i fired were fired from a luger, and which ones from a glock 19.
the hammer marks in half the shells have a round strike mark, and the other hald have a squar/oblongish strike mark.

can someone please post a picture of the strike mark of a shell fired from a luger, namely a 1937 dmw thankyou

The firing pin of a Luger pistol is round, not square.

That is correct. Glocks make a square impression on ammunition primers..

There is a mucy more reliable identifying mark. fired cartridge cases from 9mm Lugers manufactured 1903-early 1941 have an indented "ring" around the case, about 2/3 of the way up. This is a characteristic from the original design of the 9mm chamber.

--Dwight